Overview

The ProDAQ 3202 voltage reference card is used in the ProDAQ 3180 ultra-performance motherboards and LXI function card carriers. The ProDAQ 3202 voltage reference card is plugged directly onto the motherboard or carrier and can distribute the reference voltage to all ProDAQ function cards via two signal lines. This allows the distribution as a differential signal to overcome possible noise pick-up.

The ProDAQ 3202 voltage reference card features a high-precision voltage source for 10 V, which is then divided down using high-precision dividers to generate reference voltages from ±9 V to ±4.5 mV. It features a temperature sensor to further enhance its exceptional initial temperature stability of 2 ppm/°C. The ProDAQ 3202 voltage reference card output can be switched directly to the programmable gain amplifier of different ProDAQ analog-to-digital converter (ADC) function cards for on-the-fly calibration or for self-test purposes.